Graph-based light fields representation and coding using geometry information

Xin Su 1 Mira Rizkallah 1 Thomas Maugey 1 Christine Guillemot 2, 1
1 Sirocco - Analysis representation, compression and communication of visual data
Inria Rennes – Bretagne Atlantique , IRISA_D5 - SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE
2 TEMICS - Digital image processing, modeling and communication
IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, Inria Rennes – Bretagne Atlantique
Abstract : This paper describes a graph-based coding scheme for light fields (LF). It first adapts graph-based representations (GBR) to describe color and geometry information of LF. Graph connections describing scene geometry capture interview dependencies. They are used as the support of a weighted Graph Fourier Transform (wGFT) to encode disoccluded pixels. The quality of the LF reconstructed from the graph is enhanced by adding extra color information to the representation for a subset of sub-aperture images. Experiments show that the proposed scheme yields rate-distortion gains compared with HEVC based compression (directly compressing the LF as a video sequence by HEVC).
Type de document :
Communication dans un congrès
IEEE International Conference on Image Processing (ICIP), Sep 2017, Beijing, China. 〈http://2017.ieeeicip.org/〉
Liste complète des métadonnées

Littérature citée [20 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-01589626
Contributeur : Mira Rizkallah <>
Soumis le : lundi 18 septembre 2017 - 17:43:25
Dernière modification le : mercredi 16 mai 2018 - 11:24:14

Fichier

GBR_LF_ICIP2017-v2.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01589626, version 1

Citation

Xin Su, Mira Rizkallah, Thomas Maugey, Christine Guillemot. Graph-based light fields representation and coding using geometry information. IEEE International Conference on Image Processing (ICIP), Sep 2017, Beijing, China. 〈http://2017.ieeeicip.org/〉. 〈hal-01589626〉

Partager

Métriques

Consultations de la notice

230

Téléchargements de fichiers

45